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214 Ch1 slide outline - • Electron – Transmission –...

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214 Ch1 slide outline 1. Introduction to Cells and the study of cells All living organisms are composed of one or more cells Though cell shapes vary, all cells use the same basic chemistry All cells apparently evolved from a common ancestor Genes provide the instructions for the structure and function of cells Cells are studied by microscopy and cell biology techniques in model organisms. 2. Cells were discovered after the invention of the microscope: Robert Hooke’s observation 3. Types of microscopy refer to panel 1-1 Light Basics: light passes through the cell. Florescence Confocal Can examine living and dead (stained) cells
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Unformatted text preview: • Electron – Transmission – Scanning 4. Types of cells • Prokaryote – Are unicellular organisms and exhibit the most diversity in cell chemistry – Two main domains: eubacteria and archea – Membrane-bounded structure – No nucleus – Only organelles (def: cell structures which perform specific cell functions) are ribosomes • Eukaryote – Can be unicellular or part of multicellular organisms – Are bigger/more complex than prokaryotic cells – Contain numerous organelles 5. Eukaryotic cell compartments, Figure 1-24....
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